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- Update the HMI player to use the division information stored in the song and check the full file signature.

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SVN r2848 (trunk)
This commit is contained in:
Randy Heit 2010-09-23 22:37:25 +00:00
parent 917e93e633
commit 46eebe29a4
1 changed files with 5 additions and 3 deletions
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8
src/sound/music_hmi_midiout.cpp
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@ -41,7 +41,7 @@
// MACROS ------------------------------------------------------------------
#define SONG_MAGIC "HMI-MIDISONG"
#define SONG_MAGIC "HMI-MIDISONG061595"
#define TRACK_MAGIC "HMI-MIDITRACK"
// Used by SendCommand to check for unexpected end-of-track conditions.
@ -53,6 +53,7 @@
}
// In song header
#define DIVISION_OFFSET 0xD2
#define TRACK_COUNT_OFFSET 0xE4
#define TRACK_DIR_PTR_OFFSET 0xE8
@ -164,7 +165,7 @@ HMISong::HMISong (FILE *file, BYTE *musiccache, int len, EMIDIDevice type)
}
// Do some validation of the MIDI file
if (memcmp(MusHeader, SONG_MAGIC, 12) != 0)
if (memcmp(MusHeader, SONG_MAGIC, sizeof(SONG_MAGIC)) != 0)
return;
NumTracks = GetShort(MusHeader + TRACK_COUNT_OFFSET);
@ -174,7 +175,8 @@ HMISong::HMISong (FILE *file, BYTE *musiccache, int len, EMIDIDevice type)
}
// The division is the number of pulses per quarter note (PPQN).
Division = 60;
Division = GetShort(MusHeader + DIVISION_OFFSET);
InitialTempo = 4000000;
Tracks = new TrackInfo[NumTracks + 1];
int track_dir = GetInt(MusHeader + TRACK_DIR_PTR_OFFSET);